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Margin quality and local recurrence with Patient specific instruments for bone tumor resection

5 pagesPublished: June 13, 2017

Abstract

Bone tumor resection and subsequent reconstruction remains challenging for the surgeon. Obtaining adequate margins is mandatory to decrease the risk of local recurrence. Improving surgical margins quality without excessive resection, reducing surgical time and increasing the quality of the reconstruction are the main goals of today’s research in bone tumor surgical management. With the outstanding improvements in imaging and computerized planning, it is now a standard. However, surgical accuracy is essential in orthopaedic oncologic surgery (Grimmer 2005).
Patient specific instruments (PSI) may greatly improve the surgeon's ability to achieve the targeted resection. Thanks to its physical support, PSI can physically guide the blade yielding to a better control over the cutting process (Wong, 2014). Surgical time might significantly be reduced as well when compared to conventional method or navigated procedure. Finally, reconstruction may gain in rapidity and quality especially when allograft is the preferred solution as PSI can be designed as well for allograft cutting (Bellanova, 2013).
Since 2011, PSI have systematically been used in our institution for bone tumor resection and when applicable allograft reconstruction. This paper reports the mid- to long-term medical outcomes on a large series.

Keyphrases: bone tumor, Local recurrence, mid- and long-term follow up, PSI, safe margin

In: Klaus Radermacher and Ferdinando Rodriguez Y Baena (editors). CAOS 2017. 17th Annual Meeting of the International Society for Computer Assisted Orthopaedic Surgery, vol 1, pages 121--125

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